Home / 13,261.15-19,891.26-3,400.51

Finding the Fourth Proportional to 13,261.15, 19,891.26 and 3,400.51

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Solution

The fourth proportional to 13,261.15, 19,891.26 and 3,400.51 is: 5,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.15 : 19,891.26 = 3,400.51 : x
  2. Step 2: Convert to fraction form
    13,261.15/19,891.26 = 3,400.51/x
  3. Step 3: Cross multiply
    13,261.15x = 19,891.26 × 3,400.51
  4. Step 4: Simplify right side
    13,261.15x = 67,640,428.54
  5. Step 5: Solve for x
    x = 67,640,428.54/13,261.15
  6. Step 6: Final answer
    x = 5,100.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.